Rail-drill



A. HANDY AND C. E. KRUEGER.

RAIL DRILL.

APPLICATION FILED JULY 17,1919.

- Patented June 21, 1921.

2 SHEETSSHEET l- INVENTOQS WITNESSES A. HANDY'ANDHC. E. KRUEGER.

RAIL DR|LL. APPLICATIQN FILED JULY 17,1919.

PatentedJune21, 1921.

1 2 SHEETSSHEET 2.

WITNESSES ATTOQNEY UNITED STATES PATENT OFFICE.

RAIL-DRILL Specification of Letters Patent. Patented J 119 21, 1921,

Application filed July 17, 1919. Serial No. 311,565.

To all whom it may concern:

Be it known that we, ARTHUR HANDY and CLIFFORD E. KRUEGER, citizens of the United States, and residents of Milwaukee, in the county of Milwaukee and State of'Wisconsin, have invented new and useful Improvements in Rail-Drills, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

The invention relates to rail drills and more particularly to'a portable drill for use on the track.

One of the objects of this invention is to provide a portable drill which may be worked from the outer side of the rail so that the workman is not in danger of being run down by a train, though it may be placed between the rails where the space outside'of the rails would interfere with its use. In this connection also the device is provided with means which enable the workman to quickly get the device off the rail and out of the way of an approaching train.

A further object of the invention is to provide a rail drill which may be operated and moved from place to place bya single op erator.

A further object of the invention is to provide a drill in which the base of the drill may be moved away from the ra1l by a leverage system embodying rollers which ride on the rail while the operator moves the device along the track.

A further object of the invention is to provide for an automatic release of the rail clamping means when the drills have been moved away from the rail.

The invention further consists in the several features hereinafter set forth and more particularly defined by claims at the concl11- sion hereof.

In the drawings: Figure 1 is an elevation view of the device, parts being broken away and parts being shown in section; Fig. 2is a plan view of the device, parts being shown in section; Fig. 3 is a detail view of the drill head.

A base 4 is formed by a flat plate and strips 5 and 6 secured thereto form spaced guideways 7 in which the drill carrying platform or plate 8 is slidably mounted.

A prime mover such as an internal combustion engine 9 is mounted on the plate 8 and itsshaft 10 carries a gear 11. The end of the shaft 10 is journaled in a bracket12 secured to the plate 8 and this bracket, together with a bracket 13 on the plate 8, carries shafts 14, 15 and 16. The shafts 15 and 16, are the drill shafts, each having a drill 17 detachably -mounted in the end thereof and each carry a gear 18 meshing with an idler gear 19 on the shaft 14. The gear 19 also meshes with the gear 11 and by this gearing connection both drills are driven from the engine shaft 10.

The means for carrying the device consists of a frame 20 having arms 21 and transverse portions 22 secured to a long upwardly inclined handle 23. The arms 21 carry flanged rollers 24, adapted to ride on the rail A, and brackets 25, each provided with a slot having a horizontal portion 26 and an upwardly inclined portion 27. A bolt 28 on a bracket 29 secured to the base of the machine passes through each slot and guides the relative movement of the base 4 with respect to the plate 8 under conditions hereinafter described. The frame 20 is pivotally connected adjacent its transverse portion 22 to upwardly extending levers 30 by a pivot bolt 31. These levers are pivotally mounted at .their lower ends upon the plate 8 by means of a bolt 32 and are connected at their upper ends to a handle 33. The handle 33 and levers 30 form in effect a single actuating lever which when swung forwardly from the position in Fig. 1 causes the flanges of the rollers 24: to abut against the rail and then moves the base plate 4: rearwardly away from the web of the rail a short distance while the bolts 28 slide in the portions 26 of the slots in the brackets 25 and then swings the rear portion of the base 8 with the load thereon upwardly while the bolts 28 travel in the inclined portion 27 of the slots so that the operator by holding the handle 23 supports one end of the device while the rollers 24, on the rail, support the other end and with the device raised oil the tie orv ties 34 it may be carried along with one end running on the rail.

The drills are fed to and from the rail by moving the plate 8 with respect to the base 4: and the rail. This is accomplished by swinging the upper end of the lever formed by the handle 33 and levers 30 from its normal position shown in Fig. 1 rearwardly to feed the drill into the work and then forwardly to neutral position to withdraw the drills. The drills are guarded by a slotted guard plate 35 secured to the front end of the base 4.

During the time the drills are fed to and from the rail the base plate is held against movement with respect to the rail by means engaging the side of the rail opposite to that side adjacent which the drill is disposed. This means consists of a U-shaped frame 36 provided with. rail-engaging hooks 37 and with brackets 38 pivotally mounted on the bolts 28. The transverse portion 39 of the frame has a guide 40 in which the forward end 41 of a lever 42 is slidably mounted. This lever 42 is pivotally mounted intermediate its ends upon the bolt 32 and its rear end is connected to the handle 23 by a spring 43. The spring 43 normally acts through the lever 42 upon the frame 36 to raise the hooks 37 above the rail.- During the operation of feeding the drills the hooks 37 are kept in engagement with the rails by means of a pin 44 on the base 4 proiecting through a slot 45 in plate 8 and upon which the end 41 of the lever 42 slides as the drills are fed to and fromthe work so that the spring 43 is prevented from acting. As soon as the drills are withdrawn the lever 42 has been moved to such an extent by reason of its movement with the plate 8 that it passes behindthe pin 44 and the hooks 37 arethen automatically released from the rail by the action of the spring 43. When it is desired to feed the drillsto the work the outer end of the lever 42 is depressed during the first part of the forward feed of the drills and plate .8 so that the end 41 of the lever 42 will clear the pin 44 and be thereafter held in the position shown in Fig. 1 and the hooks 37 thereby held in position to counteract the tendency of the drills to back the device away from the rail.-

With the construction above described, when'the parts are in the position shown in Fig. 1 the lever 42 has been depressed by the operator so'that its end 41 will slide along the top of the pin 44 while the hooks 37 are engaging the rail. With the engine running to rotate the drills, said drills are fed forwardly to and into the rail by the swinging of the handle 33 from normal'to rearward position. On a movement of said handle to normalv position the drills are withdrawn and at the end of this movement the lever-42 passes beyond the pin and the books 37 are released. On the completion of the drilling operation, the operator holding the handle 23 in relatively fixed position moves the handle 33 forward and as previously described this backs the machine away from the rail and lifts the rear end thereof so that the operator at this end may move the machine to another position with the rollers 24 running on the rails. In case it is desired to get the machine away from the track it only .has to invention is not limited to any specific form or arrangement of parts except so far as such limitations are specified in the claims.

.What we claim as new and desire to secure by Letters Patent is:

1. In a rail drill,.the combination with a base, of a drill, means for driving the drill, means for feeding the drill, a frame operatively connected to the base and engaging the rail, and means controlled by the feeding means for raising the rear end of the base while the front end is supported upon the rail by said frame. V

2. In a rail drill, he combination with a base, of a drill, means for driving the drill, means for feeding. the drill, a frame operatively connected to the base and carrying rollers movable on the rail and provided with a handle extending rearwardly therefrom, and means for moving the base rearwardly and upwardly while the front end is supported upon the rail by said frame.

3. In a rail drill, the combination of a base, a drill, means for driving the. drill, means for feeding the drill, a frame pivotally supported on the base and having rail engaging hooks, and means controlled by said feeding means for tilting said frame to release the hooks from the rail when the drill is withdrawn.

4. In a rail drill, the combination of a base, a drill, means for driving the drill, means including a swinging lever for feeding the drill, a frame operatively connected to the base and provided with wheelsresbing on the rail,.means engagingthe rail to prevent movement of the base with respect. to the rail while feeding the drill, and means cooperating with said feed lever for raising the'rear end of the base on the swinging of said lever while the front end is supported upon the rail by said frame.

5. In a rail drill, the combination :of a base, a drill support slidably mounted on the base, a drill carried by said support, means for driving the drill, a frame. engageable at one end with the rail, and a. lever connected to the. frame and to thesupport drill when said leveris moved inthe opposite direction from normal position.

6. In a rail drill, the combination of a base, a drillsupport slidably mounted on the base, a drill carried by said support, means for driving the drill, means for moving said support to feed the drill, a frame pivotally supported on the base and having rail engaging hooks, a lever mounted on saidsupport and having a sliding connection with said frame, a spring acting on said lever to normally maintain said hooks out of engagement with said rail, and means acting on said lever during the movement of said support to maintain said hooks in engagement with the rail and prevent said spring from operating.

In testimony whereof, we aflix our signatures, in presence of two witnesses.

' ARTHUR HANDY.

CLIFFORD E. KRUEGER. Witnesses:

O. E. HYDE, Loms O. FRENCH. 

